package com.cyzy.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.cyzy.pojo.Coupon;

import java.util.List;

public interface CouponService extends IService<Coupon> {

    Coupon selectCoupon(long couponId);

    List<Coupon> selectCoupon1();
}
